Also, even the most arcane and convoluted interfaces become usable with repetition. Normal people learn the most bureaucratic business workflows and fly through them if that is their job. Then if you dare to "improve" any aspect of it you will hear them complain that you "broke" their system.
Well yes you force them to find other workarounds because their current workaround are no longer relevant. Because no system will ever fit everyones usecase.